The Second Demographic Transition

The Second Demographic Transition (SDT) refers to a shift in societal and demographic patterns that began in the late 20th century, particularly in developed countries. It is characterized by declining birth rates, delays in marriage, and increased cohabitation and individualism. People prioritize education, careers, and personal fulfillment over traditional family structures. As a result, families are smaller, and life choices regarding marriage and childbearing have become more diverse. This transition reflects changes in values, economics, and gender roles, leading to new family dynamics and population trends.